Lampblack-machine.



W. H. 'Dum PATENTBD JULY 9, 19071 'I -7. Num m8. 0m. A.F Mm Ku nvr Mw BH Wu I MM u 2 SHEETS-SHEET 1.

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W. H. DAVIS.

LAMPBLACK MACHINE. APPLIoATIoN FILED H1B. a. 1907.

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WITNESSES: INVENTOR.

7i mndm l'lavs. 77./747. M. BY;

' ATTORNEY.

UNITED STATES PATENT OFFICE.

WILLIAM H. DAVIS, OF EATON, INDIANA.

LAMPBLACK-MACHINE.

Speeication of Letters Patent.

Patentes Jury 9, 1907;

Application filed February 8,1907. Serial No. 356,371..

'natural or other kinds of gas or from oils and other kinds of hydrocarbons.

The chief feature of this invention consists in means for regulating and warming the air supply to the burners so that the quality and amount of carbon deposited will be materially increased.

Another feature of the invention consists in providing carbon collecting hoppers between carbon rollers so the carbon will be scraped from the periphery of said rollers and it will fall into the hopper and be conveyed therefrom.

Another novel feature consists of circuitous means for the outlet of the fumes whereby additional carbon will be deposited on inclined plates'whence it will be discharged into said hoppers. l

' The nature of the invention will be more fully understood from the accompanying vdrawings and the following description and claims.

In the drawings, Figure 1 is a vertical section through the device on the line 1-.1 of Fig. 2. Fig. 2 is a'section on the .line 2---2 of Fig. 1 excepting a portion of the apparatus which is shown in elevation.

A suitable casing 10 is built of brick or other means within which cylindersll, four in the machine shown, are mounted, upon which the lamp black is to be first deposited. VSaid cylinders are hollow and mounted on tubular spindles 12 and driven by gears 13 and v worms 14, on the shaft `15 carrying'the driving pulley 16. v

Within the casing centrally ,under each cylinder and near the' cylinder there is mounted a series of burners 17 extending upward from a horizontal gas pipe 18 leading-from the fuel supply pipe 19 and controlled by the valves 20. A The ames from the burner 17 contact with the cylinder and deposit upon it the carbon. .i The carbon created by mechanism Vof this sort varies in quality and ramount according to the condition of the air supplied tothe burners.- I locate some distance below the row of burners a warm air pipe 25 communicating, by a stufEng-box 26, with a hollow lcylinf der 11 which in turn communicates through a stufiingbox 27 with a pipe 28 leading from a pipe 29through l which airis supplied under pressure. The pipe 25 has a number of holes 30 on the upper side thereof and the series of holes is parallel with and immediately under the burners. I also provide a cold air supply pipe 31 within the burnerpchamb'er and located immediately below the pipe 25, and it has a number of openings 30 on/tlne upper side and is controlled by a-valve 32.

The compressed air from the pipe 25 passes into the r cylinder 11 where it is warmed and thence passes to the pipe 25 and out to the burners. This is the main feature of my invention and contributes mostly tothe improved quality and increased amount of lamp black which I have obtained by this mechanism. However, in order to control and modulate the temperature and quality of air supplied by the burners, the

-pipeSl is used and the volume of cold air therefrom is regulated and cut off by the valve 32.

The cylinders l10n which the carbon is deposited are -parallel and carbon collecting hoppers 40 and 41 are provided in connection with said cylinders with the upper ends of the hoppers adjacent said cylinders and with brackets 42 in said hoppers carrying long scraping plates 43 that bear against the periph'eries ofsaid cylinders to that the carbon is scraped off from the surface of the cylinders and falls into the hoppers. The hoppers are contracted at their lower ends and discharge into a tube44 from which it is conveyed by 4 a screw conveyer 45 to some receptacle outside of the machine. The hopper 41 serves two cylinders 11. so that the lamp black from both cylinders falls into the same hopper. A

The fumes from the burners pass upward and first strike against theinclined plates l50 and pass upward between the upper edges of said plates and then they meet an A-shaped plate 51 which causes the fumes to pass downward on each side between the plates 50 and 51 around the lower edges of the plate 51 and thence upward against th'e roof=plates 52 and out through the top'53. In making this circuitous passage an increased amount of carbon will be deposited on the,

plates 50, 51 and 52 and they are all so inclined and' set 'that the carbon from them will be discharged and drop down into the hoppers 40 and 41. The top 53 is provided with a slide-damper 54 coperating with a perforated plate 55 for controlling the draft.

What I lclaim as my' invention anddesire to secure by Letters Patent is:

I' 1. A lamp black machine including Aa closed chamber, means therein upon which carbon is deposited, fuel burners immediately under said depositing means, and means for introducing warm air below said burners. I

2. A lamp black machine including a closed chamber, a cylinder therein on which carbon is deposited, fuel burners under said cylinders, means for passing air through said cylinder anddischarging the same in said chamber under said burners.

3. A lamp black machine including a closed casing, a revolving cylinder therein on which the lamp black is deposited, a series of fuel burners under said cylinder, a pipe leading to one end of said cylinder through which air may be 'introduced under pressure, and a pipe leading from the other end of said cylinder intosaid casing under said burners with outlet openings.

4. A lump black machine including a closed chamber, a cylinder therein on which carbon is deposited, fuel burners under said cylinders, means for passing air through 'said cylinder and discharging the same in said chamber under said burners, and a valve-controlled'perforated cold air pipe in-said casing under said Warm air pipe.

In witness whereof, I have hereunto axed my signature iu the presence of the witnesses herein named.

WILLIAM H. DAVIS.

Witnesses:

U. G. PIERCE, GEO. W. HOOVER. 

